TOP257YN Power Integrations, TOP257YN Datasheet - Page 16

• Manufacturer Part Number: TOP257YN
• Description: IC OFFLINE SWIT PROG OVP TO220
• Manufacturer: Power Integrations
• Series: TOPSwitch®-HXr
• Type: Off Line Switcherr

Specifications of TOP257YN

• Output Isolation: Isolated
• Frequency Range: 119 ~ 145kHz
• Voltage - Output: 700V
• Power (watts): 157W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: TO-220-7 (Formed Leads), 5 Leads
• Output Voltage: 700 V
• Input / Supply Voltage (max): 9 V
• Input / Supply Voltage (min): - 0.3 V
• Duty Cycle (max): 78 %
• Switching Frequency: 132 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Output Current: 5.44 A
• Output Power: 157 W
• For Use With: 596-1193 - KIT REF DESIGN TOP HX FOR TOP258
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1188-5

Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
Figure 18. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Rev. F 01/09
Figure 16a. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
Figure 16c. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
16
Voltage
Voltage
Input
Input
DC
Reset
+
DC
+
-
-
Voltage
Input
Latched Output Overvoltage Protection.
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin) for TOP254-258 Y Packages.
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin) for TOP252-262 L and E Packages.
DC
+
-
TOP252-262
10 k
D
S
Q
D
S
R
CONTROL
CONTROL
D
S
X
X
V
R
V
CONTROL
LS
F
eSIP L Package
F
V
4 M
C
V X C
C
D
C
TOP252-258M
D
S
F
S
S D
C
V
V
For R
DC
DC
S
UV
OV
D
C
S
MAX
MAX
V
V
= I
= I
UV
OV
LS
X
S
UV
Sense Output Voltage
OV
@ 100 VDC = 76%
@ 375 VDC = 41%
= 102.8 VDC
= 4 M
= 451 VDC
V
S
eSIP E Package
× R
× R
S C
V X C
LS
LS
C
PI-4716-020508
PI-4956-071708
+ V
PI-4756-121007
+ V
TOP254-258Y
F
S
S D
V
V
V X C S F
(I
D
(I
C
V
V
= I
= I
S D
UV
OV
D
)
)
Figure 19. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Figure 16b. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
Figure 17. Line-Sensing for Undervoltage, Overvoltage and Line Feed-Forward.
Voltage
Input
DC
+
-
Voltage
Voltage
Input
Hysteretic Output Overvoltage Protection.
CURRENT LIMIT Features Disabled for TOP259-261 Y Packages.
Input
DC
+
DC
+
-
-
D
S
CONTROL
D
S
D
S
X
R
V
CONTROL
R
LS
CONTROL
LS
G
VR
V
V
4 M
C
4 M
OVP
C
V
V
For R
C
V
V
For R
DC
DC
UV
OV
UV
OV
R
MAX
MAX
V
V
DC
DC
V
V
= I
= I
= I
= I
OVP
UV
OV
LS
UV
OV
LS
TOP259-261Y
Sense Output Voltage
UV
@100 VDC = 76%
@375 VDC = 41%
OV
MAX
MAX
UV
OV
= 102.8 VDC
= 4 M
= 451 VDC
www.powerint.com
= 4 M
= 102.8 VDC
= 451 VDC
V X C S G
× R
× R
× R
× R
@ 100 VDC = 76%
@ 375 VDC = 41%
C S
R
LS
LS
LS
LS
OVP
PI-4984-020708
PI-4719-120307
+ V
+ V
+ V
+ V
PI-4717-120307
D
D
>3k
V
V
V
V
(I
(I
(I
(I
V
V
V
V
= I
= I
= I
= I
UV
OV
UV
OV
)
)
)
)